Nightbot, why?

nightwarp.php

<?php
    echo " ";
    define("USERAGENT", "SuperMario/6.4");

    $api = "http://warp.world/bot/";

    $streamer = $_GET["streamer"];
    $key = $_GET["key"];
    $type = $_GET["type"]; //"next" or "rand"

    $apiUrl = $api . $type . "?streamer=" . $streamer . "&key=" . $key;



    $headers = getallheaders();
    callBack($headers["Nightbot-Response-Url"], apiCall($apiUrl));

/**
 * @param $url String
 * @param $data String
 */
function callBack($url, $data) {
    $message = "message=" . urlencode($data);

    $options = Array(
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_USERAGENT => USERAGENT,
        CURLOPT_POST => TRUE,
        CURLOPT_POSTFIELDS => $message,
    );

    $ch = curl_init($url);

    curl_setopt_array($ch, $options);
    curl_exec($ch);
}

function apiCall($url) {
    $options = Array(
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_USERAGENT => USERAGENT,
        CURLOPT_POST => FALSE,
    );

    $ch = curl_init($url);

    curl_setopt_array($ch, $options);
    return curl_exec($ch);
}
?>